Re: 6.5-06 AI Fireforming
Remember that when fireforming you should be using data for the parent case rather than data for the Improved case. You'll also want a moderate charge (1-2grns blow max) and seat the bullets into the lands. This helps with brass expansion and doing so with safe pressures.
I have 2 Ackleys (a .243 AI and .30-06AI) and I'm building #3 also a 6.5-06 AI.
Hodgdon has load data for the standard 6.5-06 on their data center as well.
What brass are you using for this rifle, .25-06, .30-06, or .270 Win??? It could make a diffrence in technique.